Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
20020920T030800 ssmi15_85 22.2 6.1 75.3% 12.6 12.6 n/a   82.8 kts
20020920T065300 amsre_85 22.2 6.1 87.7% 10.2 25.2 >65 kts   89.3 kts
20020920T113900 ssmi13_85 555.0 67.3 NaN% NaN NaN n/a   85.3 kts
20020920T154000 ssmi15_85 55.5 11.7 32.9% 0.0 0.0 n/a   78.9 kts
20020920T191000 tmi_85 22.2 6.1 100.0% 22.4 37.4 >65 kts   75.0 kts
20020920T192600 amsre_85 88.8 6.1 NaN% NaN NaN n/a   75.0 kts
20020921T025300 ssmi15_85 22.2 6.1 34.2% 9.2 9.2 n/a   79.8 kts
20020921T073600 amsre_85 44.4 17.2 100.0% 31.5 46.5 >65 kts   89.0 kts
20020921T114100 tmi_85 22.2 6.1 100.0% 30.7 45.7 >65 kts   99.2 kts
20020921T152400 ssmi15_85 22.2 6.1 97.3% 19.5 34.5 >65 kts   105.7 kts
20020922T021200 ssmi14_85 555.0 6.1 NaN% NaN NaN n/a   110.0 kts
20020922T023900 ssmi15_85 22.2 6.1 100.0% 25.5 40.5 >65 kts   110.0 kts
20020922T144300 ssmi14_85 33.3 11.7 100.0% 41.7 56.7 >65 kts   110.0 kts
20020922T185500 tmi_85 33.3 11.7 100.0% 61.7 76.7 >85 kts# 110.0 kts
20020922T191400 amsre_85 33.3 11.7 100.0% 55.4 70.4 >85 kts# 110.0 kts

Key:

Diameter values indicate the estimated surface eyewall diameter (the MI eyewall edge diameter minus 10 km).

Diameter values are red if Ring % <= 65, yellow/brown if Ring % <= 85 and green if Ring % > 85.

"Ring %" is the percentage of the "ring" (eyewall inner boundary) that is 1) colder than the "hot spot" (warmest eye pixel) in the eye by 20K, or 2) the percentage that is a) colder than 232K and b) colder than the "hot spot" by 10K, whichever is greater.

"Tb diff" is the difference between the "hot spot" (warmest eye pixel) and the warmest pixel on the eyewall.

Scores are listed as negative, and not used, when the JTWC or NHC estimated Vmax is <50 kts in order to rule out weak but highly symmetric TCs.

Error messages in intensity scores: -920 is used when the hottest pixel in the eye is <200K, to prevent false positives; -909 is a failure to process (bad input data).